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LibWeb: Maintain list of allocated shadow roots in Document

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Doing that will allow us to get a list of style sheets for each shadow
root from StyleComputer without having to traverse the entire tree in
upcoming changes.
This commit is contained in:
Aliaksandr Kalenik 2024-03-09 00:19:05 +01:00 committed by Andreas Kling
parent c6e69d501f
commit 91ec1d6f95
4 changed files with 36 additions and 0 deletions
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21
Userland/Libraries/LibWeb/DOM/Document.cpp
View file

@ -486,6 +486,9 @@ void Document::visit_edges(Cell::Visitor& visitor)
}
visitor.visit(m_adopted_style_sheets);
for (auto& shadow_root : m_shadow_roots)
visitor.visit(shadow_root);
}
// https://w3c.github.io/selection-api/#dom-document-getselection
@ -4601,4 +4604,22 @@ void Document::for_each_css_style_sheet(Function<void(CSS::CSSStyleSheet&)>&& ca
}
}
void Document::register_shadow_root(Badge<DOM::ShadowRoot>, DOM::ShadowRoot& shadow_root)
{
m_shadow_roots.append(shadow_root);
}
void Document::unregister_shadow_root(Badge<DOM::ShadowRoot>, DOM::ShadowRoot& shadow_root)
{
m_shadow_roots.remove_all_matching([&](auto& item) {
return item.ptr() == &shadow_root;
});
}
void Document::for_each_shadow_root(Function<void(DOM::ShadowRoot&)>&& callback)
{
for (auto& shadow_root : m_shadow_roots)
callback(shadow_root);
}
}

6
Userland/Libraries/LibWeb/DOM/Document.h
View file

@ -604,6 +604,10 @@ public:
JS::NonnullGCPtr<WebIDL::ObservableArray> adopted_style_sheets() const;
WebIDL::ExceptionOr<void> set_adopted_style_sheets(JS::Value);
void register_shadow_root(Badge<DOM::ShadowRoot>, DOM::ShadowRoot&);
void unregister_shadow_root(Badge<DOM::ShadowRoot>, DOM::ShadowRoot&);
void for_each_shadow_root(Function<void(DOM::ShadowRoot&)>&& callback);
protected:
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
@ -840,6 +844,8 @@ private:
bool m_needs_to_resolve_paint_only_properties { true };
mutable JS::GCPtr<WebIDL::ObservableArray> m_adopted_style_sheets;
Vector<JS::NonnullGCPtr<DOM::ShadowRoot>> m_shadow_roots;
};
template<>

7
Userland/Libraries/LibWeb/DOM/ShadowRoot.cpp
View file

@ -19,9 +19,16 @@ ShadowRoot::ShadowRoot(Document& document, Element& host, Bindings::ShadowRootMo
: DocumentFragment(document)
, m_mode(mode)
{
document.register_shadow_root({}, *this);
set_host(&host);
}
void ShadowRoot::finalize()
{
Base::finalize();
document().unregister_shadow_root({}, *this);
}
void ShadowRoot::initialize(JS::Realm& realm)
{
Base::initialize(realm);

2
Userland/Libraries/LibWeb/DOM/ShadowRoot.h
View file

@ -42,6 +42,8 @@ public:
JS::NonnullGCPtr<WebIDL::ObservableArray> adopted_style_sheets() const;
WebIDL::ExceptionOr<void> set_adopted_style_sheets(JS::Value);
virtual void finalize() override;
protected:
virtual void visit_edges(Cell::Visitor&) override;